Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 36

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482
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Conditions: This symptom occurs when performing an ISSU upgrade or downgrade.
Workaround: There is no workaround.
CSCth87195
Symptoms: Flexwan ATM interface goes down.
Conditions: This symptom is observed while configuring “mac-address” or “atm bridge-enable”.
Workaround: Perform a shut and no shut on the interface.
CSCth90001
Symptoms: Packets egressing interfaces of ES+ line cards are not received on the other side of L2
link when SVI plus switchport configuration is used. It is random and does not occur on every ES+
line card.
Conditions: This symptom is observed when ES+ line card is egress line card and SVI plus L2
switchport configuration is used. When this issue is seen the CFI bit in vlan tag header for such
packets is set by X40g egress-intf causing the peer router to drop such packets.
Workaround: Use L3 802.1q subinterface configuration.
CSCti00020
Symptoms: Standby takes more time to come up on SSO.
Conditions: This symptom depends on the SIP based cards that are on the chassis. Every single SIP
based card increases the time by one more minute.
Workaround: There is no workaround.
CSCti14290
Symptoms: A Cisco 7600 series router acting as the PE router in an MPLS network may stop
forwarding traffic for certain IP prefixes within a VRF. This symptom may occur after a router
reload, upgrade or crash due to corrupted hardware-forwarding information on the ingress module
for the VPN label of the affected IP prefix.
The problem can be identified by comparing the output of the following commands:
1. Determine the BGP VPN Label for the prefix
show ip /jointfilesconvert/422273/bgp vpnv4 all vrf vrf name prefix
router# sh ip cef vrf test 10.1.1.1 detail
10.1.1.0/24, epoch 13
local label info: other/4828 <=== label is 4828
recursive via 10.100.1.2
attached to GigabitEthernet1/1
2. Determine the hardware forwarding for the prefix on the Supervisor
show mls cef mpls label label detail
RCORL02#sh mls cef mpls label 4828 detail
Codes: M - mask entry, V - value entry, A - adjacency index, P - FIB Priority
D - FIB Don't short-cut, m - mod-num, E - ELSP?
Format: MPLS - (b | xtag vpn pi cr mcast label1 exp1 eos1 valid2 label2 exp2
eos2)
V(2570 ): B | 1 0 0 0 0 4828 0 1 0 0 0 0
(A:213683 ,P:0,D:0,m:0 :E:1)
M(2570 ): F | 1 FFF 0 0 1 FFFFF 0 1 0 0 0 0
show mls cef adjacency entry
entry id
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